var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var lessMiddleware = require('less-middleware');

var index = require('./routes/index');
var users = require('./routes/users');
var routes = require('./routes');
var login = require('./routes/login');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cookieParser());
app.use(lessMiddleware(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'public')));

// app.use('/', index);
// app.use('/users', users);


//登录拦截器
app.use(function (req, res, next) {
    var url = req.originalUrl;
    // if (url != "/login" && !req.session.user) {
    //   return res.redirect("/login");
    // }
    // console.log('usrl: '+url);
    // console.log('method: '+req.method);

    if (url != "/login") {
        if (!req.cookies.token) {
            res.clearCookie('token');
            return res.redirect("/login");
        }

        var token = req.cookies.token;

        var jwt = require('jwt-simple');
        var secret = 'ACE_BLOG';

        var decoded = jwt.decode(token, secret);
        // => {"username":"admin","md5":"d41d8cd98f00b204e9800998ecf8427e","time":"2017-07-18 16:47:35"}

        console.log('token: '+token);


        var timestamp = Date.parse(new Date(decoded.time));
        timestamp = timestamp / 1000;

        var nowTimestamp = Date.parse(new Date()) / 1000;

        var radiu = 3*60*60;//60s 1分钟


        console.log('--------- timestamp ---------');
        console.log(decoded.time);
        console.log(nowTimestamp);
        console.log(timestamp);

        if (nowTimestamp - timestamp > radiu) {
            res.clearCookie('token');
            return res.redirect("/login");
        }
    }

    next();
});


routes(app);

// catch 404 and forward to error handler
app.use(function (req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

// error handler
app.use(function (err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};

    // render the error page
    res.status(err.status || 500);
    res.render('error');
});

module.exports = app;
